Electron feed structure for flat-type luminous device

Details Electron feed structure for flat-type luminous device Electron feed structure for flat-type luminous device

1990-03-28

1991-07-16

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313422, 313432, H01J 2974

Patent

active

050327615

ABSTRACT:
An electron feed structure for a flat-type luminous device capable of permitting electron emitted from an electrons source to be uniformly fed throughout a display section. The electron feed structure includes an electron flow guide constituted by an inner guide electrode of a high voltage and an outer guide electrode of a low voltage, so that an electric field of a high voltage and that of a low voltage may be alternately formed to form electrostatic lenses in the guide, to thereby effectively prevent the function of the electron flow guide from being deteriorated. A guide voltage applied to each of the electrode segments of the inner guide electrode is rendered constant and a guide voltage applied to each of the electrode segments of the outer guide electrode is likewise rendered constant, to thereby cause the correlation between the guide voltage and a deflection voltage applied to the electron flow guide to be uniform irrespective of a position within the electron flow guide, resulting in electrons emitted from the electron source being drawn out under the same conditions.

REFERENCES:
patent: 4137478 (1979-01-01), Credelle
patent: 4153856 (1979-05-01), Siekanowicz et al.

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